Some animals are especially gifted with directional abilities. Migratory birds, for example, have a sixth sense that allows them to tell which way is north (there's a small organ in their heads that is sensitive to magnetic fields, such as the Earth's. Unusual things happen around mobile phone towers for birds). They obviously use this in their migrations. Bees' eyes can detect the polarisation of sunlight to similarly determine direction. They also have an incredible memory for landmarks.